/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.itbase.runtime;

import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.net.URL;
import java.sql.*;
import java.util.Calendar;
import java.util.List;
import java.util.Map;

/**
 * The implementation of {@link ClusterTestResultSet} in cluster test.
 */
public class ClusterTestResultSet implements ResultSet {

    private final List<ResultSet> resultSets;
    private final List<String> endpoints;
    private final int queryTimeoutSeconds;

    public ClusterTestResultSet(
            List<Statement> statements, List<String> endpoints, String sql, int queryTimeoutSeconds)
            throws SQLException {
        this.queryTimeoutSeconds = queryTimeoutSeconds;
        this.endpoints = endpoints;
        RequestDelegate<ResultSet> delegate = createRequestDelegate();
        for (Statement st : statements) {
            delegate.addRequest(() -> st.executeQuery(sql));
        }
        resultSets = delegate.requestAll();
    }

    @Override
    public boolean next() throws SQLException {
        RequestDelegate<Boolean> delegate = createRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(rs::next);
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public void close() throws SQLException {
        RequestDelegate<Void> delegate = createRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(
                    () -> {
                        rs.close();
                        return null;
                    });
        }
        delegate.requestAll();
    }

    @Override
    public boolean wasNull() throws SQLException {
        RequestDelegate<Boolean> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(rs::wasNull);
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public String getString(int columnIndex) throws SQLException {
        RequestDelegate<String> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getString(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public boolean getBoolean(int columnIndex) throws SQLException {
        RequestDelegate<Boolean> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBoolean(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public byte getByte(int columnIndex) throws SQLException {
        RequestDelegate<Byte> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getByte(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public short getShort(int columnIndex) throws SQLException {
        RequestDelegate<Short> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getShort(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public int getInt(int columnIndex) throws SQLException {
        RequestDelegate<Integer> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getInt(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public long getLong(int columnIndex) throws SQLException {
        RequestDelegate<Long> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getLong(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public float getFloat(int columnIndex) throws SQLException {
        RequestDelegate<Float> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getFloat(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public double getDouble(int columnIndex) throws SQLException {
        RequestDelegate<Double> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getDouble(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
        RequestDelegate<BigDecimal> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBigDecimal(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public byte[] getBytes(int columnIndex) throws SQLException {
        RequestDelegate<byte[]> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBytes(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Date getDate(int columnIndex) throws SQLException {
        RequestDelegate<Date> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getDate(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Time getTime(int columnIndex) throws SQLException {
        RequestDelegate<Time> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getTime(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Timestamp getTimestamp(int columnIndex) throws SQLException {
        RequestDelegate<Timestamp> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getTimestamp(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public InputStream getAsciiStream(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public InputStream getUnicodeStream(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public InputStream getBinaryStream(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public String getString(String columnLabel) throws SQLException {
        RequestDelegate<String> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getString(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public boolean getBoolean(String columnLabel) throws SQLException {
        RequestDelegate<Boolean> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBoolean(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public byte getByte(String columnLabel) throws SQLException {
        RequestDelegate<Byte> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getByte(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public short getShort(String columnLabel) throws SQLException {
        RequestDelegate<Short> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getShort(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public int getInt(String columnLabel) throws SQLException {
        RequestDelegate<Integer> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getInt(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public long getLong(String columnLabel) throws SQLException {
        RequestDelegate<Long> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getLong(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public float getFloat(String columnLabel) throws SQLException {
        RequestDelegate<Float> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getFloat(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public double getDouble(String columnLabel) throws SQLException {
        RequestDelegate<Double> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getDouble(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public BigDecimal getBigDecimal(String columnLabel, int scale) throws SQLException {
        RequestDelegate<BigDecimal> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBigDecimal(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public byte[] getBytes(String columnLabel) throws SQLException {
        RequestDelegate<byte[]> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBytes(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Date getDate(String columnLabel) throws SQLException {
        RequestDelegate<Date> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getDate(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Time getTime(String columnLabel) throws SQLException {
        RequestDelegate<Time> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getTime(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Timestamp getTimestamp(String columnLabel) throws SQLException {
        RequestDelegate<Timestamp> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getTimestamp(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public InputStream getAsciiStream(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public InputStream getUnicodeStream(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public InputStream getBinaryStream(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public SQLWarning getWarnings() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void clearWarnings() {
        throw new UnsupportedOperationException();
    }

    @Override
    public String getCursorName() {
        throw new UnsupportedOperationException();
    }

    @Override
    public ResultSetMetaData getMetaData() throws SQLException {
        RequestDelegate<ResultSetMetaData> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(rs::getMetaData);
        }
        List<ResultSetMetaData> metaDataList = delegate.requestAll();
        return new ClusterResultSetMetaData(metaDataList, endpoints);
    }

    @Override
    public Object getObject(int columnIndex) throws SQLException {
        RequestDelegate<Object> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getObject(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Object getObject(String columnLabel) throws SQLException {
        RequestDelegate<Object> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getObject(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public int findColumn(String columnLabel) throws SQLException {
        RequestDelegate<Integer> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.findColumn(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public Reader getCharacterStream(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Reader getCharacterStream(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
        RequestDelegate<BigDecimal> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBigDecimal(columnIndex));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public BigDecimal getBigDecimal(String columnLabel) throws SQLException {
        RequestDelegate<BigDecimal> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(() -> rs.getBigDecimal(columnLabel));
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public boolean isBeforeFirst() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isAfterLast() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isFirst() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isLast() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void beforeFirst() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void afterLast() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean first() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean last() {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean absolute(int row) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean relative(int rows) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean previous() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void setFetchDirection(int direction) {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getFetchDirection() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void setFetchSize(int rows) {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getFetchSize() {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getType() {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getConcurrency() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean rowUpdated() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean rowInserted() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean rowDeleted() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNull(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBoolean(int columnIndex, boolean x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateByte(int columnIndex, byte x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateShort(int columnIndex, short x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateInt(int columnIndex, int x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateLong(int columnIndex, long x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateFloat(int columnIndex, float x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateDouble(int columnIndex, double x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBigDecimal(int columnIndex, BigDecimal x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateString(int columnIndex, String x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBytes(int columnIndex, byte[] x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateDate(int columnIndex, Date x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateTime(int columnIndex, Time x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateTimestamp(int columnIndex, Timestamp x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateAsciiStream(int columnIndex, InputStream x, int length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBinaryStream(int columnIndex, InputStream x, int length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateCharacterStream(int columnIndex, Reader x, int length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateObject(int columnIndex, Object x, int scaleOrLength) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateObject(int columnIndex, Object x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNull(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBoolean(String columnLabel, boolean x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateByte(String columnLabel, byte x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateShort(String columnLabel, short x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateInt(String columnLabel, int x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateLong(String columnLabel, long x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateFloat(String columnLabel, float x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateDouble(String columnLabel, double x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBigDecimal(String columnLabel, BigDecimal x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateString(String columnLabel, String x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBytes(String columnLabel, byte[] x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateDate(String columnLabel, Date x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateTime(String columnLabel, Time x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateTimestamp(String columnLabel, Timestamp x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateAsciiStream(String columnLabel, InputStream x, int length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBinaryStream(String columnLabel, InputStream x, int length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateCharacterStream(String columnLabel, Reader reader, int length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateObject(String columnLabel, Object x, int scaleOrLength) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateObject(String columnLabel, Object x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void insertRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void deleteRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void refreshRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void cancelRowUpdates() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void moveToInsertRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void moveToCurrentRow() {
        throw new UnsupportedOperationException();
    }

    @Override
    public Statement getStatement() {
        throw new UnsupportedOperationException();
    }

    @Override
    public Object getObject(int columnIndex, Map<String, Class<?>> map) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Ref getRef(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Blob getBlob(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Clob getClob(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Array getArray(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Object getObject(String columnLabel, Map<String, Class<?>> map) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Ref getRef(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Blob getBlob(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Clob getClob(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Array getArray(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Date getDate(int columnIndex, Calendar cal) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Date getDate(String columnLabel, Calendar cal) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Time getTime(int columnIndex, Calendar cal) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Time getTime(String columnLabel, Calendar cal) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Timestamp getTimestamp(int columnIndex, Calendar cal) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Timestamp getTimestamp(String columnLabel, Calendar cal) {
        throw new UnsupportedOperationException();
    }

    @Override
    public URL getURL(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public URL getURL(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateRef(int columnIndex, Ref x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateRef(String columnLabel, Ref x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBlob(int columnIndex, Blob x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBlob(String columnLabel, Blob x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateClob(int columnIndex, Clob x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateClob(String columnLabel, Clob x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateArray(int columnIndex, Array x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateArray(String columnLabel, Array x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public RowId getRowId(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public RowId getRowId(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateRowId(int columnIndex, RowId x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateRowId(String columnLabel, RowId x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getHoldability() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isClosed() throws SQLException {
        RequestDelegate<Boolean> delegate = createLocalRequestDelegate();
        for (ResultSet rs : resultSets) {
            delegate.addRequest(rs::isClosed);
        }
        return delegate.requestAllAndCompare();
    }

    @Override
    public void updateNString(int columnIndex, String nString) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNString(String columnLabel, String nString) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNClob(int columnIndex, NClob nClob) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNClob(String columnLabel, NClob nClob) {
        throw new UnsupportedOperationException();
    }

    @Override
    public NClob getNClob(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public NClob getNClob(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public SQLXML getSQLXML(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public SQLXML getSQLXML(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateSQLXML(int columnIndex, SQLXML xmlObject) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateSQLXML(String columnLabel, SQLXML xmlObject) {
        throw new UnsupportedOperationException();
    }

    @Override
    public String getNString(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public String getNString(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Reader getNCharacterStream(int columnIndex) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Reader getNCharacterStream(String columnLabel) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNCharacterStream(int columnIndex, Reader x, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNCharacterStream(String columnLabel, Reader reader, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateAsciiStream(int columnIndex, InputStream x, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBinaryStream(int columnIndex, InputStream x, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateCharacterStream(int columnIndex, Reader x, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateAsciiStream(String columnLabel, InputStream x, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBinaryStream(String columnLabel, InputStream x, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateCharacterStream(String columnLabel, Reader reader, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBlob(int columnIndex, InputStream inputStream, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBlob(String columnLabel, InputStream inputStream, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateClob(int columnIndex, Reader reader, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateClob(String columnLabel, Reader reader, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNClob(int columnIndex, Reader reader, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNClob(String columnLabel, Reader reader, long length) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNCharacterStream(int columnIndex, Reader x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNCharacterStream(String columnLabel, Reader reader) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateAsciiStream(int columnIndex, InputStream x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBinaryStream(int columnIndex, InputStream x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateCharacterStream(int columnIndex, Reader x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateAsciiStream(String columnLabel, InputStream x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBinaryStream(String columnLabel, InputStream x) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateCharacterStream(String columnLabel, Reader reader) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBlob(int columnIndex, InputStream inputStream) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateBlob(String columnLabel, InputStream inputStream) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateClob(int columnIndex, Reader reader) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateClob(String columnLabel, Reader reader) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNClob(int columnIndex, Reader reader) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateNClob(String columnLabel, Reader reader) {
        throw new UnsupportedOperationException();
    }

    @Override
    public <T> T getObject(int columnIndex, Class<T> type) {
        throw new UnsupportedOperationException();
    }

    @Override
    public <T> T getObject(String columnLabel, Class<T> type) {
        throw new UnsupportedOperationException();
    }

    @Override
    public <T> T unwrap(Class<T> iface) {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) {
        throw new UnsupportedOperationException();
    }

    /**
     * As each query operation in one ResultSet may send another RPCs to server, the request should be
     * executed in parallel in order to accelerate the test.
     */
    private <T> RequestDelegate<T> createRequestDelegate() {
        return new ParallelRequestDelegate<>(endpoints, queryTimeoutSeconds);
    }

    private <T> RequestDelegate<T> createLocalRequestDelegate() {
        return new SerialRequestDelegate<>(endpoints);
    }
}
